At least one bank is leaning towards developing it on a permissioned blockchain.Source
https://uniconft.wpengine.com/wp-content/uploads/2021/11/unico-logo.png00GRYZUoDLu7t8z22https://uniconft.wpengine.com/wp-content/uploads/2021/11/unico-logo.pngGRYZUoDLu7t8z222023-04-18 01:18:282023-04-18 01:18:28Hong Kong’s Banks Are Taking Lead on What e-HKD Will Look Like: Source